OBD Guide
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P1D85

Traction Motor Inverter Module Malfunction Signal Line Low

P1D85 is an OBD-II diagnostic trouble code meaning: Traction Motor Inverter Module Malfunction Signal Line Low. Common causes: traction motor inverter module malfunction, wiring harness damage. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–556 (est.)

Symptoms

  • Reduced engine power
  • Check Engine light comes on
  • Possible problems with acceleration
  • The car may go into emergency mode

Causes

  • Traction motor inverter module malfunction
  • Wiring harness damage
  • Poor connection in connectors
  • Short circuit in the circuit
  • Software problems

How to Fix

  1. Check the condition of the wiring harness and connectors
  2. Check voltage and resistance in the circuit
  3. Scan the inverter module for errors
  4. Replace the inverter module if necessary
  5. Update software if necessary

Related codes

P1D84P1D86

FAQ

What does the P1D85 code mean?

P1D85 is an OBD-II diagnostic trouble code that indicates: Traction Motor Inverter Module Malfunction Signal Line Low

What causes a P1D85 error code?

The most common causes of P1D85 include: Traction motor inverter module malfunction; Wiring harness damage; Poor connection in connectors; Short circuit in the circuit.

How do I fix a P1D85 diagnostic trouble code?

To fix P1D85: Check the condition of the wiring harness and connectors. Check voltage and resistance in the circuit. Scan the inverter module for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D85?

Do not drive — repair immediately

How much does it cost to fix P1D85?

The estimated repair cost for P1D85 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat